Myr Matrix

Indestructible (Effects that say "destroy" don't destroy this artifact.) Myr creatures get +1/+1. {5}: Create a 1/1 colorless Myr artifact creature token.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6oa49t6qsvpb1hrygonk4i.